名校
1 . 已知:集合
.
(1)若m=2,求A∩B,A∪B;
(2)若A⊆B,求实数m的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6749690a91431083007e2b5d9c93af95.png)
(1)若m=2,求A∩B,A∪B;
(2)若A⊆B,求实数m的取值范围;
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2021-12-05更新
|
366次组卷
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2卷引用:河南省平顶山市龙河实验高级中学2021-2022学年高一上学期12月月考数学试题
2 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9364bb76c1968197e0da98d9146d9a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19878a238446aeb5f36d257c87af6658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d413168d2ad9dccacd5ca4cc0841f2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-12-04更新
|
283次组卷
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2卷引用:河南省2021-2022学年高三尖子生11月联合诊断性测试数学(文)试题
解题方法
3 . 已知集合
,
.
(1)若
,求实数
的取值范围;
(2)当
时,若
,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec4afd0a0b35a6a5cadf4b1ed7e2587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1652dd8f83120f5c5ef1289c5ea04f3f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b53ac1518ab1268f77f8c16d2318f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f1a3feca6218955446108ebad0a524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/009f0e38eb7ca54d42fa181619978075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 设
,
是两个集合,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
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名校
5 . 已知集合
,
.
(1)若
,求
的取值范围;
(2)若
,求
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0de9b905fa03da0d4edc3eb8fd2cdb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab190823af28a323ab67dbba4ebb62bf.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
6 . 已知集合
,
.
(1)若
,求实数
的取值范围;
(2)若“
”是“
”的充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61768de967f7e1b591d524464dab53da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dddd885b8279165567a74cc2dbdc6fa.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170ed92b09d13465657b81d1defedec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6833b91adaea892664f8c773d5922b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f692cdc81d52ab2fda33ace0c006a808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-11-26更新
|
176次组卷
|
3卷引用:河南省焦作市沁阳市高级中学2021-2022学年高一上学期第三次月考数学试题
7 . 已知全集
,集合
,
.
(1)求
.
(2)若集合
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42043a9c7e3a5071e1705228fab423ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa5cef8970037864631c3e05bcc81ec.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be7026b721caf58b61b1daac10d7db2b.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e482cf257e109c04dd52d949c844b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db311645e6c41ce6de3242259ce55a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-11-25更新
|
213次组卷
|
3卷引用:河南省信阳市2021-2022学年高一上学期期中考试数学试题
解题方法
8 . 已知集合
,
,若
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9410855bbc06292b09f08176dc3f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6892f562f6f30f6afb525fe9fd87af0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 已知
,
关于
的不等式
恒成立
(1)当
时
成立,求实数
的取值范围;
(2)若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf1ae3ee35af82871cc4b7cd8f80857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240eee396898b09737b5d561bf057bbf.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
10 . 已知
为实数集,集合
,
,
.
(1)求
,
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2db7d50ffecd893c6d4c3826b13540e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e333a15148253a285fd5c162998aea09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21cccacb16960179b757c3905ba28ca2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b569bd1df594e70666e9f6ea3d851a4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafb511452fb3b93485fe41c73810efd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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